Answers

Why I can't sync with my iPad? The "Proceed" button remains disabled, or the syncing never finishes.

If you are unable to sync your device with Reunion for Macintosh -- for example, if the "Proceed" button isn't enabled -- try the following steps in order, and attempt to sync after each step.

The first thing to check is to make sure that your Mac is not connected to your network via both WiFi and Ethernet. You can check this via: Apple Menu > System Preferences > Network. If you see a green dot next to both Wi-Fi and Ethernet, then click the button "Turn Wi-Fi Off" and try syncing again.

Make sure the wireless network is not setup as a "Guest" network in your router's configuration. (Skip this step if you don't understand what it means.)

Creating a Computer-to-Computer WiFi Network

If the above six steps don't solve the syncing problem, you may need to create a "computer-to-computer" WiFi network between your Macintosh and your iPad. It could be that your Mac has WiFi capability, but you're not currently using it.
Or, you might be using a public WiFi connection that will not allow the iPad to see your Macintosh. You can get around this by creating a computer-to-computer network. To do this, follow these steps...

1. Open the System Preferences window on your Macintosh, click on Network, and select "AirPort" from the list on the left.